CVE-2026-5105

MEDIUM

Totolink A3300R Parameter cstecgi.cgi setVpnPassCfg command injection

Title source: cna
STIX 2.1

Description

A vulnerability was detected in Totolink A3300R 17.0.0cu.557_b20221024. The affected element is the function setVpnPassCfg of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. Performing a manipulation of the argument pptpPassThru results in command injection. It is possible to initiate the attack remotely. The exploit is now public and may be used.

References (5)

Core 5
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-354130 | Totolink A3300R Parameter cstecgi.cgi setVpnPassCfg command injection
https://vuldb.com/vuln/354130
Signature, Permissions Required signature permissions-required
VDB-354130 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/354130/cti
Third Party Advisory third-party-advisory
Submit #779143 | Totolink A3300R 17.0.0cu.557_b20221024 Command Injection
https://vuldb.com/submit/779143
Product product
https://www.totolink.net/

Scores

CVSS v3 6.3
EPSS 0.0367
EPSS Percentile 88.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-74 CWE-77
Status published
Products (2)
Totolink/A3300R 17.0.0cu.557_b20221024
totolink/a3300r_firmware 17.0.0cu.557_b20221024
Published Mar 30, 2026
Tracked Since Mar 30, 2026